Lakes Map in Phnom Penh
All Lake:
  • layer is not activated Boeung Tompun
  • layer is not activated Boeung Tamok or Boeung Kobsrov
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The interactive maps of lakes in Phnom Penh have been prepared by Sahmakum Teang Tnaut (STT) to make it easier for the public to find, download, and to use for all purposes. For this data, STT has no intention other than to publicly present the data which is useful for participatory development.

STT’s report released in December 2019 shows that since 2003, many satellite city and city development project owners have been filling the lakes of Phnom Penh for the development of condos, boreys, markets, and other infrastructure. Around 60 percent of lakes and 40 percent of wetlands have been filled. The livelihoods of citizens who depend on these lakes and wetlands have been affected. Thousands of families have been evicted from their homes, and some are facing eviction in the future due to development projects that continue to threaten their homes and jobs. This has had environmental impacts such as floods and pollution, which have several serious consequences. Therefore, we are focusing our work on lakes, starting with, Boeung Tumpon and Boeung Tamok, which are the largest and most important lakes in Phnom Penh.

All documents used in the creation of the maps are publicly available to government institutions, and STT only compiled and consolidated this data into visible maps in accordance with the knowledge and skills of our organization.

Boeung Tompun

Boeung Tumpon is the second largest natural lake in Phnom Penh. It serves a vital purpose both for the people and the environment of Phnom Penh. This lake is located in the south of Phnom Penh, in Khans Meanchey (Sangkat Chak Angre Leu and Sangkat Chak Angre Krom) and Dangkor (Sangkat Dangkor and Sangkat Cheung Ek) and borders Ta Khmao City Kandal Province. The total area of the lake is about 2,500 hectares, but in 2008 the Cambodian government-designated only 520 hectares of the lake to remain as state public property. This lake has many functions such as serving as a reservoir for approximately 70% of Phnom Penh’s rainwater. It also semi-effectively treats a majority of the city’s wastewater, serves as an agricultural area, and as a habitat for fish and birds. The citizens build houses along the lake and on the lake to live and use because it is not far from the center of Phnom Penh, where they have access to jobs and education opportunities, which are not available in the outskirts of the city.


Boeung Tamok or Boeung Kobsrov

Boeung Tamok or Boeung Kobsrov is the largest natural lake in Phnom Penh, located in the northwest along Win-Win Boulevard and constitutes 3239.7 hectares, covering 2 districts, 6 communes, and 25 villages.
Around the lake, there are about 300 families and 1,000 people, most of whom work on the fields or on the lake, fishing, farming or running home-based businesses. In addition to the benefits to humans, Boeung Tamok is also home to many birds and fish.

In 1980, Boeung Tamok was a lowland where people could farm seasonally. After the construction of Tom Nob Kobsrov Dam Road and a drain from Phnom Penh, as well as the excavation of soil, the lake became deeper.